“Out Of Browser (OOB)” for Silverlight is a possibility to install RIA application on local computer and run it without web browser or even internet connection (occasionally connected applications). That’s why we have in title abbreviation RDA (Rich Desktop Application). In this article I would like to present how it’s working and how to implement it in our application. It also contains demos, descriptions and a lot of images. Demo First we start with already working application, created for MIX09 ......